(Science)Unit 2: Lesson 5
How many times does light refract when traveling through the glass slide?
2
Which of the following is NOT a result of refraction?
A camera filter makes everything appear darker.
When placed in bright sunlight, which object is the most likely to reflect the least amount of light?
A dark curtain
When placed in bright sunlight, which object is most likely to transmit the most light?
A glass window
Lenses are curved transparent objects that can
All of the above.
Objects become visible to human eyes when they ______ light waves.
Reflect
_________ is a wave changing direction when it speeds up or slows down.
Refraction
When placed in bright sunlight, which object is the most likely to absorb the most light?
Sunglasses
What happens when the laser travels through the glass above?
The laser slows down through the glass and speeds up when it reaches air.
Which of these statements is true of light refraction?
The more light waves slow in a new medium, the more they bend.
What properties would make it most difficult to determine the color of an object?
The object is behind a lens that strongly refracts light away from it.
What was Isaac Newton's idea?
The particle model of light
What was Christiaan Huygens' idea?
The wave model of light
Which of the following is NOT true of light rays?
They differ in behavior from light waves.
True or false: Is this concave
True
True or false: Is this convex
True
Which specific theory did the scientific community in the 17th and 18th centuries decide best explained the properties of light?
Wave model
Lens
a curved transparent object that bends light in specific ways (concave and convex)
Light wave
a model of light that explains why light carries energy, reflects, refracts, and can be absorbed or transmitted similarly to a mechanical wave
Light ray
a straight arrow that represents the direction a light wave travels
The camera filter shown here makes the waterfall appear darker by
absorbing light that passes through it.
Engineers control how lenses bend light by
carefully designing their structure and shape.
Which of the following would NOT increase the amount of light that transmits through the window?
darken the tint of the window
One way light waves differ from mechanical waves is that they
do not require a medium.
Scientists accepted Christiaan Huygens' theory of light because
evidence supported Huygens' wave model better than Newton's particle model.
A lens with a thick middle and thin ends is useful for
focusing light to a specific point.
A light wave is a model of light that explains why
light carries energy similarly to a mechanical wave.
How do light waves differ from mechanical waves?
light waves don't require a medium
When light waves strike an object,
the object's properties determine how the waves will behave.
Transparent
when light goes through something
Translucent
when light partially goes through something
Opaque
when no light goes through something
